Adjustable light fixture



Dec. 6, 1960 M. BOBRICK 2,963,255

ADJUSTABLE LIGHT FIXTURE Filed Feb. 3, 1958 2 Sheets-Sheet l INVENTOR.M/7'C/ /EZ L fiQ e/Ck QTTaP/VEVS Dec. 6, 1960 M. BOBRICK 2,963,255

ADJUSTABLE LIGHT FIXTURE Filed Feb. 3, 1958 2 Sheets-Sheet 2 INVENTOR.

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WTOQ/VEVS MTGJELL Baa/Woe United States Patent ADJUSTABLE LIGHT FIXTUREMitchell Bobrick, Pacific Palisades, Califl, assignor to Marvin ElectricManufacturing Co., Los Angeles, Calif., a corporation of CaliforniaFiled Feb. 3, 1958, Ser. No. 712,798

1 Claim. (Cl. 248327) My invention comprises an adjustable light fixtureand more specifically a recessed light fixture which is adaptable toreceive the large electric light bulbs which have their ends silvered orfrosted. Such light bulbs vary in length even when they are of the samepower because of manufacturing tolerances. It is desirable that theselight bulbs extend through the fixture and the basal only to the limitsof the silvered area of the light bulbs. Because of the variation inlength of these bulbs, this has constituted a prime nuisance in theinstallation of such fixtures.

In general my invention comprises a fixture which has a mounting for thebulb slidably adjusted in a vertical plane so that it may be used forany length of light bulb. After the light bulb is screwed into myfixture, it can be pushed further into the fixture or pulled out so thatthe silvered area of the bulb lines up with the basal and none of theclear glass of the bulb shows outside of the basal. If any of thesilvered area is inside of the fixture this causes a decrease in lightgiven ofi by the fixture and is, therefore, undesirable.

Other objects and advantages of my invention will be apparent from thefollowing description of the preferred embodiments thereof.

Figure l is a vertical section through my light fixture.

Figure 2 is a vertical section of a detail.

Figure 3 is a section end View.

Figure 4 is a section taken on the line 4-4 of Figure 2.

Figure 5 is a section taken on the line 55 of Figure 4.

Figure 6 is a section taken on the line 66 of Figure 4.

Figure 7 is a top plan view of a detail.

A light fixture constructed in accordance with my invention is adaptedto be mounted in a ceiling 1 and has an outer housing 2 and a basal 3.The housing 2 has welded or otherwise attached thereto an angle bracket4. The angle bracket 4 has a slot 5. A second angle bracket 6 has onesurface 7 adapted to receive a light bulb socket 8, and the othersurface 9 has thereon a U shaped strap 10 which is adapted to slide inthe slot 5. A spring clip 11 is placed through the strap 10 and itsouter ends 12 engage the opposite side 13 of the bracket 4. The strap 10and clip 11 support the angle bracket 6 slidably vertically on the anglebracket 4. An ordinary porcelain light bulb socket 8 is carried in thehole 14 so as to extend downwardly from the angle bracket 6. It is heldin place by a U-shaped strap 15 which has dogs 16 extending under theangle bracket 6 and is held in position by the set screw 17. A recessedfixture constructed as above provides a platform (the angle bracket 6)for the socket 8 and when a light bulb 20 having a silvered surface 21and a line of demarcation 22 between the silvered surface 21 and theclear glass 23 is placed in a socket 8 by merely pushing upwardly orpulling downwardly upon the light bulb 20, the line of demarcation 22can be adjusted as shown in Figure 1 to exactly coincide with the outeredge of the basal 3 thus securing a perfect matching of these lines.This fixture gives oil all of its light through the silvered surface 21and no glare is received in the room below from the unsilvered surface23.

I claim:

A recessed light fixture comprising a housing, a hanger supported bysaid housing, a light socket supporting platform, a vertical slot insaid hanger, a strap on said platform slidable in said slot, and springmeans to retain said strap in said slot.

References Cited in the file of this patent UNITED STATES PATENTS442,192 Lewis Dec. 9, 1890 1,139,823 Thomas May 18, 1915 1,575,245Wurdack Mar. 2, 1926 1,690,941 Nickerson Nov. 6, 1928 1,709,804 PaisteApr. 16, 1929 1,825,920 Popp Oct. 6, 1931 1,880,952 Fabrey Oct. 4, 19322,773,976 Glatthar et al Dec. 11, 1956

